Results 121 to 130 of about 53,283 (278)

Simplified Cluster Voltage Balancing Control Based on Zero-Sequence Voltage Injection for Star-Connected Cascaded H-Bridge STATCOM

CSEE Journal of Power and Energy Systems
The cluster DC voltage balancing control adopting zero-sequence voltage injection is appropriate for the star-connected cascaded H-bridge STATCOM because no zero-sequence currents are generated in the three-phase three-wire system.
Kai Hu, Guoliang Zhao, Daorong Lu, Zhengang Lu, Nianwen Xiang, Shulai Wang, Jintian Lin   +6 more
doaj   +1 more source

The Generation and Control of Irregularly Shaped Perfect Vector Vortex Beams on Hybrid Poincaré Spheres Using All‐Dielectric Metasurfaces

Nanophotonics, Volume 15, Issue 3, 12 February 2026.
Based on an all‐dielectric metasurface with cross‐phase modulation, we achieve the generation and polarization control of integers and fractional order irregular perfect vector vortex beams on the hybrid Poincaré sphere, opening a new avenue for optical field manipulation.
Xiaojie Sun, Xuan Yang, Haixu Tao, Haiyang Song, Jingpei Cai, Jiaxuan Zou, Jiajing He, Jun Wang   +7 more
wiley   +1 more source

Hyperbolic Volumes of Two Bridge Cone-Manifolds

Известия Иркутского государственного университета: Серия "Математика"
In this paper we investigate the existence of hyperbolic, Euclidean and spherical structures on cone-manifolds with underlying space 3-sphere and with singular set a given two-bridge knot.
A. D. Mednykh, A. B. Qutbaev
doaj   +1 more source

Geographical Distribution and Socio‐Economic Importance of Raphia ruwenzorica From South‐West of Burundi

Plant-Environment Interactions, Volume 7, Issue 1, February 2026.
ABSTRACT The genus Raphia is among the commonly used and socio‐economically important plants in Africa. While Raphia ruwenzorica species is known to occur in Burundi, eastern Democratic Republic of Congo, Rwanda, and Uganda, its geographical distribution and socioeconomic importance are poorly documented in Burundi. This study maps R.
Jacques Nkengurutse, John Maina Nyongesa, Eric Nimubona, Gaëlle Ndayizeye, Anatole Bukuru, Rosette Irampagarikiye, Marie Violette Niyonsaba, Longin Ndayikeza, Kamaguru Bienvenu Imani, Jérémie Ngezahayo, Yuelin Li   +10 more
wiley   +1 more source

On $(W; p^{\alpha}(y))$-summation of trigonometrical Fourier integrals

, 2015
L.G. Bojtsun, T.I. Rybnikova
openalex   +2 more sources

Comprehensive Surrogate Models for Predicting the Melt Conveying Characteristics of Channel Segments in High‐Performance Single‐Screw Extruders

Polymer Engineering &Science, Volume 66, Issue 2, Page 716-738, February 2026.
Generalized analytical equations were developed that accurately predict the local pumping characteristics, viscous dissipation, and average shear rates in channels of both conventional and high‐performance single‐screw extruders. Applied within segmented extruder calculations, these models aid in screw design and process troubleshooting without the ...
Daniel Herzog, Wolfgang Roland, Christian Marschik, Gerald Berger‐Weber   +3 more
wiley   +1 more source

Equiconvergence of expansions in root functions of a differential operator and in a trigonometric Fourier series

Современная математика: Фундаментальные направления
We consider a non-self-adjoint ordinary differential operator defined on a finite interval by an \( n \)th-order linear differential expression with a nonzero coefficient of the \( (n-1) \)th derivative and two-point Birkhoff regular boundary conditions.
V. S. Rykhlov
doaj   +1 more source

Design and Analysis for Digital Twin Optimization

Quality and Reliability Engineering International, Volume 42, Issue 1, Page 80-92, February 2026.
ABSTRACT Digital twins (DTs) provide dynamic, virtual representations of physical systems, facilitating real‐time monitoring, prediction, and optimization through the integration of sensor data, computational models, and feedback mechanisms. Despite their potential, deploying DTs in complex systems often entails substantial computational costs.
Xueru Zhang, Dennis K. J. Lin, Peiyao Liu   +2 more
wiley   +1 more source

A collocation method for a hypersingular boundary integral equation via trigonometric differentiation [PDF]

, 2014
Rainer Kreß
openalex   +1 more source

Storm Wind Flow and Sediment Dynamics on Adjacent Coastal Dunes With Contrasting Morphologies During One Storm Event

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 2, February 2026.
Abstract This study presents the first high‐resolution spatial and temporal analysis of wind flow, sediment transport and topographic evolution under simultaneous storm conditions across two morphologically contrasting beach‐dune systems, characterized by a gently sloping dune face (11°) and a steep, scarped dune face (36°).
N. Robin, C. René, A. Lamy, A. Nicolae Lerma, B. Castelle, P. A. Hesp, O. Raynal, O. Burvingt, D. Rosebery   +8 more
wiley   +1 more source